I remember a teacher forcing bullies to stand there silent while their victims yelled at them and told them exactly what they thought of their bullying.
Parents threw a fit about it, but several of the bullies stopped acting that way, though not all of them. A couple even apologized for their behavior.
Teacher might've been a bit harsh, but her view was that bullies need to learn that their behavior does have consequences.
Yelling may not be necessary, but it certainly helps the poor victims vent their feelings in a relatively safe manner.
Relatively.
The method could use some fine tuning, but it has some merit in preventing further incidents. Beats the FLAKK out of blaming the victims for being bully-able.